American kestrel vs sparrow hawk

American kestrel and sparrow hawk both are nouns.

Word	Noun	Adjective	Verb	Adverb
American kestrel	Yes	No	No	No
sparrow hawk	Yes	No	No	No

As nouns, American kestrel and sparrow hawk are synonyms defined as:

Other synonyms of American kestrel include Falco sparverius, kestrel.

American kestrel (noun)	sparrow hawk (noun)
small North American falcon	small North American falcon
	small hawk of Eurasia and northern Africa